@article{ZNSL_2005_321_a5,
     author = {E. V. Dybkova},
     title = {The theorem of {Borewich} for the hyperbolic unitary group over a~skew field},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {136--167},
     publisher = {mathdoc},
     volume = {321},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2005_321_a5/}
}